@nestjs/common/decorators/modules/module.decorator.js

Nest - modern, fast, powerful node.js web framework (@common)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const constants_1 = require("../../constants");
const invalid_module_config_exception_1 = require("./exceptions/invalid-module-config.exception");
const metadataKeys = [
    constants_1.METADATA.IMPORTS,
    constants_1.METADATA.EXPORTS,
    constants_1.METADATA.CONTROLLERS,
    constants_1.METADATA.PROVIDERS,
];
const validateKeys = (keys) => {
    const validateKey = (key) => {
        if (metadataKeys.includes(key)) {
            return;
        }
        throw new invalid_module_config_exception_1.InvalidModuleConfigException(key);
    };
    keys.forEach(validateKey);
};
/**
 * Decorator that marks a class as a [module](https://docs.nestjs.com/modules).
 *
 * Modules are used by Nest to organize the application structure into scopes. Controllers
 * and Providers are scoped by the module they are declared in.  Modules and their
 * classes (Controllers and Providers) form a graph that determines how Nest
 * performs [Dependency Injection (DI)](https://docs.nestjs.com/providers#dependency-injection).
 *
 * @param metadata module configuration metadata
 *
 * @see [Modules](https://docs.nestjs.com/modules)
 *
 * @publicApi
 */
function Module(metadata) {
    const propsKeys = Object.keys(metadata);
    validateKeys(propsKeys);
    return (target) => {
        for (const property in metadata) {
            if (metadata.hasOwnProperty(property)) {
                Reflect.defineMetadata(property, metadata[property], target);
            }
        }
    };
}
exports.Module = Module;